Okay, see now that's funny. If anything the joke is aimed at the Firedorn.
And because he slept with a man in drags, not a transgendered dude.
Start seeing where are we coming from already?
Furthermore, the man Firedorn slept with didn't even have to be in drag necesarily. Firedorn could have been drunk, pranked by an illusion spell, whatever ... and the person who dies is Firedorn.